Rated 5 out of 5 stars

I find that extension useful in case of emergency to avoid clutter. You can save current set of tabs simply by pressing a button, then close them all, switch yourself to work on different projects and when ready revert to the closed set just by pressing a button. Simple, not intrusive and effective thing.

This review is for a previous version of the add-on (1.0.1-signed.1-signed).